1. Google Maps -- A way to get directions or look at zoomable maps.
  2. Google Scholar -- A way to search scholarly works rather than searching EVERYTHING.
  3. Google Book Search - A way to find books, search through books, even download books in the public domain.
  4. Google News Archives - A way to search through old newspapers and news publications.
  5. Google "Office"
    1. Gmail -- eMail almost without limit
    2. Calendar -- Online calendar
    3. Writely -- Online writing, web publishing, and collaboration tool.
    4. Spreadsheets -- Online spreadsheets